US6776615B2ExpiredUtilityPatentIndex 92
Tweezers
Priority: Sep 15, 2000Filed: Sep 14, 2001Granted: Aug 17, 2004
Est. expirySep 15, 2020(expired)· nominal 20-yr term from priority
Inventors:DIETRICH HERBERT
A61C 3/10
92
PatentIndex Score
20
Cited by
8
References
7
Claims
Abstract
Tweezers for holding strip-shaped or thread-shaped material with particularly abrasive characteristics are disclosed, for example, for dental purposes, wherein clamping elements, particularly in the shape of rods, are arranged in the area of the free end of each of the two legs of the tweezers, and wherein, in the closed position of the tweezers, at least one clamping element arranged at a leg contacts two clamping elements arranged at a distance from one another at the other leg or engages in a recess located in the latter.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1. Tweezers for holding strip-shaped or thread-shaped material with particularly abrasive characteristics including for dental purposes, comprising:
clamping elements in the shape of rods, being arranged in the area of a free end of each of two legs of the tweezers;
at least one clamping element arranged at a leg so that the at least one clamping element contacts two other clamping elements arranged at a distance from one another at the other leg in a closed position of the tweezers; wherein the clamping elements are constructed as cylinders, with circular cross section, which are arranged axially parallel to one another and are fastened to the inner side of the legs of the tweezers by gluing, soldering or welding.
2. Tweezers according to claim 1 , wherein the clamping elements project above the legs of the tweezers on at least one side.
3. Tweezers according to claim 1 , wherein the longitudinal axis of the rod-shaped clamping elements encloses an obtuse angle with the longitudinal axis of the legs.
4. Tweezers according to claim 1 , wherein the clamping elements at both ends terminate flush with the longitudinal boundaries of the legs of the tweezers.
5. Tweezers according to claim 1 , wherein the outer surface of the clamping elements has a friction coating, at least in the area of contact with the strip-shaped or thread-shaped material.
6. Tweezers according to claim 5 , wherein the friction coating is a diamond powder.
7. Tweezers according to claim 1 wherein in the clamping position, the centers of the circular cross sections form corner points of an isosceles fight-angled triangle in a section through the clamping cylinder normal to the axis.Cited by (0)
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References (0)
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